| Protected Memory |
Protocol |
| Proxy |
Proxy Server |
| Pseudocode |
Public data network |
| Public Key |
Pulldown list |
| Purge |
Pushdown list |
| Pushup list |
Quadbit |
| Query |
Query Language |
| Quicksort |
Radio Wave |
| Radix Sorting |
RAM |
| RAM- Random Access Memory |
Random Sampling |
| Range |
Raster Image |
| Read/Write Memory |
Realtime applications |
| Reboot |
Record Lock |
| Recovery tool |
Recycle Bin |
| Redo |
Redundancy |